Night-lock.



'1L R. TOWNE. NIGHT Loox. nmonrpn I'I'LBD Jun 16,1908. 919,979, Patented Apr. 2'?, 1909.

2 sHnETs-snnm 1.

WHA/55555 l [NVE/WOR Harney rfi: Namzls PETERS co., wAs'HlNaroN, n. c.

H'. R. TOWNE.

NIGHT LOOK. Ifrmouronunn JUNI: 16,19a.

59192979, PatentedA Apr; 27,- 1909.,

' ZSHBBTS-SHEET 2.

WITNESSES l @mit y Umrnfn srnrns rATENT oFFion HENRY R. TOWNE, OF NEW YORK, Y., SSIGNOR TO THE YALE &YTOWNE MANUFACTURING COMPANY, .OF s TAMFCRD, CONNECTICUT.

NIGHT-LOCK.

i u. .A ppncnonnieazrnne iafieos. seria1No.4ss,so7.

To all 'whom it may concern.' Y f Be it known that I, HENRY TowNn, of

New York, in the county of New York land State of New York, have invented certa-in new and useful Improvements in Night.- Locks; and I dohereby declare the following to be a full, clear, and exact' descriptionyof the invention, such as will enable others`v skilled in the art to which it appertainsto make and use the same. f

My invention relatesto improvements in night locks, the object being to provide a lock in which the boit. may be automatically thrown and deadlocked upon the closure of the door. j

This lock is designed as an improvement on several types of night latches now used extensively on entrancerdoors of all kinds and for many other purposes.

Night latches are of two classes as to use, viz: those for use on front doors of houses, Hats, etc., where a night latch isin con stant use, s'o as to prevent any one from entering without a proper key, or without assistance from the inside, and second those.

used on the entrance doors oistores, chicos, etc., where, during the day, the latch bolt is usually stopped back and the .door held closed by a simple latch which canbe actuated from either side by a knob. ter type the purpose of the nightlatchis to secure the door only at night, or when `the store or office is unoccupied. In the use ot the type rst abovereferred to the key must be used every time the door is opened, and it would greatly increase the trouble if the key had also to be used each time to lock the door. It is however self locking, and thus minimizes the use of a key for a door which is required to be locked at all times against the outside.v In the second use of latch above referred to, the occupant of the store or oflice stops the latch bolt when he enters in the morning and leaves it so until he closesV at night. type of lock isoperated only twice in twenty four hours, once to unlock and once to lock.

This fact makes it obvious that under such .latter against attack on its bolt. AOn thev other hand, the publicproperly has a decided preferenceffor a self-locking lock, thebolt of which is automatically thrown into the( Specicatonlof Lettersv Patent.

' Fig. 8 an elevation of the locking bolt. In this lat- Practically, therefore, this., latter Patented Aprile?, 1909.

lockedposition without requiring the use of thekey, as is the kcase with the customary form of night latch. Aspring bolt of this kind, however, can be retracted by i ressure against its end, and, therefore, whi e more convenient,'is less secureV than a dead bolt, that is, one which ismoved into the locked position bythe key, and thus is positively dogged so that it cannot be retracted by pressure against its end.

Myimproved lock is designed to combine the `convenience of a night latch, with its automatically acting bolt, and the safety of a dead lock, with its bolt guarded against retraction by pressure on the end.

' In the accompanyingdrawings, Figure 1 is i a view in elevation of my lock showing the locking bolt and the auxiliary bolt or trigger retracted. Fig. 2 is a similar view showing thelocking bolt retracted and the auxiliary bolt or trigger projected. Fig. 3 is a view in rear elevation of the lock with the parts as shown in Fig. 1, the cover plate being re,- moved. Fig. 4 is a similar view of the parts in the position shownin Fig. 2. Fig. 5 is a similar view showingboth bolts projected.

Fig. 6 is a view in longitudinal section of the lock. Fig. 7 is a view in edge elevationFand lgs.. 9 and 10 are similar views of the auxiliary bolt or trigger. Figs. 11 and 12 are views in plan and `edge elevation respectively of the releasing lever. the tripping lever, and Fig. 15 is a view of a modiiied form of tripping lever.

While l have shown and will describe the improvement as applied to av rim lock, it should be understood that it is equally appli cable toa mortise lock, hence .l do not comme the use off the invention type of lock. Y

1 represents the lock case, 2 themain bolt having a square end, and 3 the auxiliary bolt or triggerlocated adjacent to one edge of the main bolt.` In the present instance the two to any particular bolts 2 and 3 pass through a single opening inthe faceplate l of the lock, and each forms anedge Abearing or support for the other, but if desired the face plate may beL .provided withan opening. for each bolt.

The main bolt 2 is provided at its rear or inner endwith the two rearwardly projecting rods or shanks 5, passing through the guide vplate 6. and provided at their rear ends with arms. 7 which latter are engaged by thev Figs. 13 and 14 are views of lll ends of the roll back 8 on the knob spindle 9, and also by a similar roll back on the cover plate of the lock, the latter roll back being actuated by a cylinder lock on the outside ot the door in the wellknown manner. The ends of the guide plate 6 rest against, and are supported by the lugs 10 integral with the lock case 1, and are held in place by the springs 11 embracing the Shanks 5, and bear-v ing at their front ends against the rear face of the bolt 2, and at their rear ends against the 1plate 6. These springs also tend to normal y force the bolt to its projected position, and are the only means employed for forcing the bolt 2 outwardly.

The auxiliary bolt or trigger 3 is provided with a single rearwardly projecting shank 12, which passes through a slot in the guide plate 6, and 1s embraced by a spring 13 which also bears against the plate 6 and bolt 3, and tends to hold the latter in its projected position.

The bolt 2 is provided at its rear end with the laterally projecting lug 14 adapted to be engaged by the toothed end 15 of the bolt ho ding and deadlocking lever 16. This lever 16, is of the bell crank variety, and is pivoted at its elbow to the lock case and is provided at its front end with the tooth 15 for engaging the lug 14 on the bolt 2, and at its rear end with the stud 17 adapted when the bolt2 is projected, to restin the recess 18 of the roll back 8, the spring 19 tending to nor 'mally hold the stud 17 in contact with the roll back. The recess 18 in the roll back holds the lever 16 solidly in position with its outer end in rear of the lug 14 on the bolt thus dead locking the latter against retraction by'any instrument inserted between the strike plate or keeper and the face plate of the lock.

Viith the parts in position shown in Fig. 5, by rotating the knob and its spindle 9, or the key mechanism, the roll back 8 will be turned. The initial turning movement forces the stud 17 out of the recess 18 and turns the lever 1.6 out of the path of the lug 14, thus permitting the continued movement of the roll back to retract the bolt. The initial movement of the roll back simply removes the forward end of lever 16 out of the path of lug 14. As the bolt is retracted by the continued. movement of the roll back, the lug 14 on bolt 2, moving in contact with the beveled frontend 20 of' the lever 16, turns the latter on its pivot until the lug 14 on the bolt 2 passes in rear oi' the tooth 15. As soon as the lug 14 on bolt 2' passes the tooth 15, the lever 16 is turned by its spring 19 to carry the tooth in front of the lug, thus locking the bolt 2 in its retracted position.

From the foregoing it will be seen that the lever 16 operates to deadlock the bolt when the latter is projected, and as will be now explained holds it when retracted against outl ward movement, until the auxiliary boltI or trigger 3 has been forced inwardly by een-` tact with the strike )late or keeper.

Projecting inwardly from the rear end ol the bolt 2 is the shoulder 22, having a stud 21, on which the bolt releasing lever 23 is pivoted. This lever extends transversely ol' the bolt 2, and is provided with a spring 23, which tends to normally hold the lever in contact with the rear face of the head of the bolt. This lever 23 is provided near its pivotal end with an arm 24, which may be in the form ol'- a pin secured to the lever, or it may be formed integral with the lever. This arm extends toward lever 16, and when the bolt is retracted, as in Fig. 3, the arm 24 rests immediately in front ot the inclined slimllder 25 on said lever 16, so that, a rearward move ment of the lever 23 will cause its arm 24 to engage the shoulder 25, and move the lever 1 6 laterally in a direction to disengage tooth 15 from lug 14, thus releasing the holt 2 and permitting it to move to its locking position.

The lever 23 is actuated by the tripping lever 26 pivotally mounted on the auxiliary bolt or trigger 3. This lever 26 is provided with an uiwardly projecting lugl 27 and a downwardly projecting lug 28, the former adapted to coperate with the free end of lever 23 on bolt 2, and the lug 28, adapted to be engaged by the stop slide 2). The lever is yieldingly held in position with its lug 27 in line with the tree end ot lever 23 by the spring 30a. lhen the bolt is retracted lrom the outside by a kcy,or from the inside by knob and spindle, as previously explained, the releasing lever 23 will be moved bark- Wardly with the bolt 2 until its free end rests infront of the lug 27 on the tripping lever carried by the auxiliary bolt, thus holding the latter in its retracted position. The stop slide is simply a spring actuated sliding plate 29 resting in the path of the lug 28 el the lever 26, and provided with a button or knob by which it is actuated from the inside ol the door. When the plate 29 is moved, it engages lug 28 on. lever 26, thus moving the latter and carrying` its lug 27 out ot the path of the end olI lever 23.

Assuming' the door is to be locked, the elifect of the key in unlocking is to fully retract both bolts 2 and 3, whereupon they are both automatically retained in their retracted positions. Vith both bolts retracted, the lock is out oi commission, and may be so lett until it is desired to againt put into service. llhen this is desired, it is simply necessary to shift the stop slide 29 (on the inside) thereby releasing the auxiliary bolt 3, so that il stands in its projected position. be now closed, the auxiliary bolt 3, impinging the strike plate 31, will be pushed back into the lock case, and in moving back, release the main bolt 2 from the bolt holding lever 16, through the intervention of the li the door tripping lever 26 and the bolt releasing lever 23 as previously ex lained. The act of unlocking,V performed )y the lrey oi' knob in the usual manner, not only i'etracts the two bolts` 'Vl'lhen' but puts the lock out oioommission. it is desired to restore-the look to service, all that is needed is to move the stop slide 29 and then close the door. Hence it will be seen that the key is Aonly used toi'et and alter the latter' have beer retracted, the lock may be setior automati 'operation'by moving the stop slideZll, in a Adirection to releaseV the auxiliary bolt thus peimitting" the latter to be projected by its spring, and rest in a position to be engagedV by the strike plate or keeper, as the dooris closed.

The strike plate or keeper 31. is provided with a throat or opening' to receive the end of main bolt 2, and with a closed face or projection against which the auxiliary-bolt of trigger 3 impinpges as the doorI isclosed and which, while the door-is closed, holds the bolt or trigger 3 wholly or partlyretracted.

lt is evident that many slight changes might be resorted to in the relative arrangement ol parts shown and described without departing; trointhe snirit and scope of my invention hence l would have it understood that l do not wish to confine myself to the exact construction of vparts. shownvand vdescribed,but,

Having' fully described my invention what l claim as new and desire to. secure byLetters-Patent, is i 1. ln a lock, the combination witha main bolt, and means Vfor retracting same, of an auxiliary bolt adapted to be moved coincidently with the main bolt when thelatter is retracted and normally held in suoli retracted position, when the main bolt is so held, means for releasing' the auxiliary bolt and a spring' projecting the lattervindependcntly of the main bolt. Y

2. In a lock, the combination with a main bolt, means for retracting same, an auxiliary bolt adapted to be moved coinoidently with the main bolt as the latter is retracted, means for holding' said auxiliary bolt in its retracted. position, and means for releasing same to allow it to be projected, of a lever for deadlockinir the main bolt when the latter is in its locking position, and for holding said main bolt in itsretracted position, the saidV lever being; actuated by the auxiliary bolt c to release the reti'acted main bolt.

3. ln a lock, the combination with a main` bolt, a spring tendingV to normally hold same in locking' position, an auxiliary bolt, means connecting' the two bolts whereby the auxiliary bolt will be movedrinwardly with the main bolt, and means for releasingP the auxiliary bolt from the main bolt to allow it to bek projected independently of theV latter, of a single means for deadloclring the main bolt when the latter is project-ed and iorholding' act .the bolts,

it in its retracted position, the said means being. actuated bythe, auxiliary bolt to release the main 'bolt' from thelioldina means.

4. ln a lock, the combination with a main bolt, a spring` tending' tonorinally hold same in` its locking' position, means' for i'etractino;

,it'and means for holding; itv in its retracted position, of an auxiliary bolt, connections between the two bolts whereby the auxiliary lii'oltwill be moved inwardly by the inward movement of the main bolt, means for releasing the auxiliary bolt so that it may be 'projected independently of the main bolt,

.and means whereby rwhen the auxiliary bolt is forced inwardly by the strike plate, the holding' means for the main bolt will be disengaged therefrom thus permitting' the main bolt to `be projected.

5.2 ln -a loclgthe combination with a main bolt, a spring' for forcing' same outwardly, means for ietractine,` the bolt and means for holding' the latter in` its retracted position andalso for deadloclring it when projected,

of an auxiliary bolt, a connection between thev main and auxiliary bolts whereby the latter will be moved inwardl with the inain bolt, means for. disconnecting' the auxiliary bolt from the main bolt to allow it to be projected independently of the latter, and means actuated by inward movement of the auxil-, Viary bolt for releasing the main bolt l'roni its bolt, and means for retracting same, ofran auxiliary bolt adapted to be moved coincidently with the mainv bolt when the latter is retracted and normally held in suoli retracted position when the main bolt is so held, means operable from the inside of the door for releasing the auxiliary bolt and a spring projecting' the latter independently of the main bolt.

8. ln a lock the combination with a main bolt, means for retraoting same, an auxiliary bolt adapted to be moved coincidently with the main bolt when the latter is retracted, and normally held in such retracted position when the main bolt is so held, means for releasing the auxiliary bolt and a spring for projecting the latter independently of the main bolt, of a strike plate having' an opening to receive the main bolt and having a closed part or projection against which the auxiliary bolt impinges when the door is closed,

ino

and which when the door is closed, holds the auxiliary bolt wholly or partly retracted.

9. ln a lock the combination with main bolt, means `lor retracting same, and a spring for forcing it outwardly, otl a means for holding the main bolt retracted, an auxiliary bolt, means carried by the main bolt for disengaging the main bolt holding means from the main bolt, and means carried by the auxiliary bolt for actuating the said disengaging means.

' 10, ln a loch, the combination with a main bolt, means for retracting same, and a spring for l'oreing it outwardly, oi a lever for holding the main bolt retracted, a releasing means carried by the main bolt engaging the holding lever and adapted to move same in a direction to release the main bolt, an auxiliary bolt and a tripping lever carried thereby for actuating the releasingl means on the main bolt.

l. l. lin a lock, the combination with a main bolt, means l'or retracting same and a spring l'or forcing' it outwarolj", ol means lor holding the main bolt retracted, a releasing lever carried by the main bolt and engaging the holding means and adapted to move same in a direction to release the main bolt, an auxiliary bolt, a tripping lever carried by same lor actuating the releasing lever, and a stop slide adapted to move the trmping` lever and release the auxiliary bolt when both bolts are in their retracted positions.

l2. ln a lock, the combination with a main bolt and an auxiliary bolt, o'r' a holding lever for holding' the main bolt retracted, a spring controlled releasing lever carried by the main bolt and engaging the holding lever, and a spring controlled tripping lever carried by spring controlled. tripping lever carried by the auxiliary bolt and having a projection resting 1n the path ol" a portion ol the releasing lever, whereby when the main bolt is retracted, the auxiliary bolt will also be retracted, and means whereby the tripping lever can be moved to disengage it l'rom the releasing lever thus permitting the auxiliary lbolt to be forced outwardly.

le. In a lock the combination with a main bolt, means lor holding the same retracted and releasing means carried by said bolt and engaging the holding means, of an auxiliary bolt, and a spring controlled tripping lever thereon, the said latter lever having a inember resting in the path of the releasing means, whereby when the auxiliary bolt is forced inwardly by contact with the strike plate ol the lock the releasing means will be actuated to disengage the main bolt holding means.

ln testimony whereof, l have signed this specication in the presence ol two subscribing' witnesses.

,lllCNlY ll.. TUXYNE.

Witnesses:

F. C. Sommes, W. A. Locxwoon. 

